Introduction to Crossfit

I've really been enjoying leisurely jogs with my dog and have very little interest in attempting any long distances anytime soon. I'm really enjoying swimming, too. But one thing I've been dying to try is CrossFit. It seems to be all rage lately. Some of the workouts I've seen look a little intimidating: pull-ups, dead-lifts, and tire flipping. Sidebar - The whole concept reminds me of Rocky IV when Rocky went to the Soviet Union and trained in a shed to fight Drago for killing Apollo. He came into the ring looking like a beast!

It peaked my interest and I wanted to try it out for myself. I visited Bulldog Bootcamp & CrossFit for a free intro class last night. It was interesting. I learned I have zero upper body strength. The workout we completed was pretty simple, but I was drenched in sweat by the time it was over:

Run around the block (about 300 meters, less than 1x around the track)
40 squats
30 sit ups
20 push ups
10 rings dips (arm pull ups with those rings gymnasts use)
Run around the block again

The workouts move fast. It took me 14:49 to do all of that. The push ups were the hardest for me. And of course, I was last to finish. Our instructor said the workouts can range from 5 to 45 minutes. The average being is 30 minutes. Bulldog Bootcamp & CrossFit will welcome us back to try things out 3 more times within 10 days for free. I will definitely be back again to tryout the different workouts.
UPDATE: I like the concept of Crossfit, but the lifting required in the beginner workout was a little too tough for me. I'll continue to use the interval training method in my workouts to get stronger and perhaps revisit a Crossfit Box.